Quote:
Originally Posted by NathObeaN
Quote:
Originally Posted by NathObeaN
So just to post an update here, I recently gave my car a full service including changing the air filter. The sounds is noticeably reduced... my suspicion is that either the old air filter was past its best or it wasn't secure properly perhaps leaving a small gap for air to leak.
The other things I changed, but I can't think of any reason it would cause the noise to change:
Brake pads
Brake fluid (flush)
Engine oil (flush)
Oil filter
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Ignore. I thought the issue had subsided but after some hard driving, it came back. |
Had the same issue since 5000km to 30000km with the sound increasing over time, then on highway high speed drive the car went to limp mode. Cleared the codes using BimmerLink and ordered: charge pipe, turbosmart diverter (plumb back) and wagner IC. The sound is completely gone. Car is whoosh wistle dead quiet. Suspect a leak somewhere in the system.